Posts the entry relation.

curl --request POST \
     --url http://localhost:64424/episerverapi/commerce/entries/{entryCode}/entryrelations \
     --header 'accept: application/json'

var myHeaders = new Headers();
myHeaders.append("accept", "application/json");
myHeaders.append("content-type", "application/json");

var requestOptions = {
   method: 'POST',
   headers: myHeaders,
   redirect: 'follow'
};

fetch("http://localhost:64424/episerverapi/commerce/entries/{entryCode}/entryrelations", requestOptions)
   .then(response => response.text())
   .then(result => console.log(result))
   .catch(error => console.log('error', error));

require "uri"
require "json"
require "net/http"

url = URI("http://localhost:64424/episerverapi/commerce/entries/{entryCode}/entryrelations")

http = Net::HTTP.new(url.host, url.port);
request = Net::HTTP::Post.new(url)
request["accept"] = "application/json"
request["content-type"] = "application/json"

response = http.request(request)
puts response.read_body

import requests
import json

url = "http://localhost:64424/episerverapi/commerce/entries/{entryCode}/entryrelations"

payload = {}
headers = {
   'accept': 'application/json',
   'content-type': 'application/json'
}

response = requests.request("POST", url, headers=headers, data=payload)

print(response.text)

// The entry relation is saved.
{
  "SortOrder": "",
  "Quantity": "",
  "RelationType": "",
  "GroupName": "",
  "ParentEntryCode": "",
  "ChildEntryCode": ""
}

// If the entry relation model is not valid.

// If user does not have enough permission for this request.

// If entry does not exist.